Roentgenology, also known as radiology, is the medical specialty that deals with the use of radiological procedures to diagnose and treat diseases. There are several synonyms for roentgenology, including radiography, radiology imaging, diagnostic imaging, and X-ray technology. Radiography is the use of X-rays to visualize the internal structures of the body, while diagnostic imaging includes other radiological techniques such as computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound. X-ray technology refers specifically to the use of X-rays for medical imaging, while radiology imaging encompasses all medical imaging techniques, including X-rays, MRI, and CT scans.